S2·E3 A Certain Samaritan

DCI Vera Stanhope investigates the murder of 29-year-old Niall Coulter. With those closest to Niall intent upon obscuring the truth, it is not until the body of a drug dealer is found washed up on a Northumberland beach that the dreadful truth begins to emerge about Niall's past. While coping with revelations from her own past, Vera sifts through evidence of the grief, love and addiction that characterised Niall's life and deduces that his murderer acted through selfless and unrequited love.